18358111. INCREMENTAL TRANSFORM SET CONSTRUCTION AND TRANSFORM SIGNALING FOR VIDEO CODING simplified abstract (Apple Inc.)

INCREMENTAL TRANSFORM SET CONSTRUCTION AND TRANSFORM SIGNALING FOR VIDEO CODING

Organization Name

Apple Inc.

Inventor(s)

Hilmi Enes Egilmez of Santa Clara CA (US)

Yunfei Zheng of Santa Clara CA (US)

Alican Nalci of Cupertino CA (US)

Yeqing Wu of Cupertino CA (US)

Yixin Du of Cupertino CA (US)

Guoxin Jin of San Diego CA (US)

Alexandros Tourapis of Los Gatos CA (US)

Jun Xin of San Jose CA (US)

Hsi-Jung Wu of San Jose CA (US)

INCREMENTAL TRANSFORM SET CONSTRUCTION AND TRANSFORM SIGNALING FOR VIDEO CODING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18358111 titled 'INCREMENTAL TRANSFORM SET CONSTRUCTION AND TRANSFORM SIGNALING FOR VIDEO CODING

Simplified Explanation

The abstract of this patent application describes a system for coding and decoding video content using adaptive transform coding. The system uses a hierarchy of transform sets, where each set includes a number of transforms and higher-level sets include the transforms of lower-level sets. The system allows video coders and decoders to exchange signaling to establish a context for selecting and using the appropriate transform set for coding and decoding blocks of video content.

• The system performs transform coding and decoding on blocks of video content.
• Transform types are organized into a hierarchy of transform sets.
• Each transform set includes a respective number of transforms.
• Higher-level transform sets include the transforms of lower-level sets.
• Video coders and decoders exchange signaling to establish a transform set context.
• The context helps identify the transform set selected for coding a given block(s).
• Video coders and decoders also exchange signaling to establish a transform decoding context.
• The context helps identify the transform selected from the identified transform set for decoding the transform unit.
• The selected transform is used to code and decode the block(s).

Potential applications of this technology:

• Video compression and encoding systems
• Video streaming services
• Video conferencing and telecommunication systems
• Video surveillance and security systems

Problems solved by this technology:

• Efficient coding and decoding of video content
• Reduction in bandwidth and storage requirements for video transmission and storage
• Improved video quality and compression efficiency
• Adaptive selection of transform types based on the characteristics of video content

Benefits of this technology:

• Higher compression ratios for video content
• Reduced bandwidth and storage costs
• Improved video streaming and playback performance
• Enhanced video quality and visual experience

Original Abstract Submitted

Video coders and decoders perform transform coding and decoding on blocks of video content according to an adaptively selected transform type. The transform types are organized into a hierarchy of transform sets where each transform set includes a respective number of transforms and each higher-level transform set includes the transforms of each lower-level transform set within the hierarchy. The video coders and video decoders may exchange signaling that establishes a transform set context from which a transform set that was selected for coding given block(s) may be identified. The video coders and video decoders may exchange signaling that establishes a transform decoding context from which a transform that was selected from the identified transform set to be used for decoding the transform unit. The block(s) may be coded and decoded by the selected transform.